Bug #313: Setting contrast value for SmartXX V3 changes backlight when modchip detection is ON. - XBMC4Xbox - Redmine

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Bug #313

closed

Setting contrast value for SmartXX V3 changes backlight when modchip detection is ON.

Added by psyko_chewbacca over 10 years ago. Updated over 10 years ago.

Status:

Closed

Priority:

Low

Assignee:

buzz

Category:

Other (un-categorized)

Target version:

3.5

Start date:

05/08/2014

Due date:

% Done:

100%

Resolution:

fixed

Affected Version:

3.5

Description

If I enable modchip detection in "advancedsettings.xml" with a SmartXX V3, changing contrast value in settings will actually change backlight value.

In "smartxxlcd.cpp" source file, you can see that both "DisplaySetBacklight"(line 414) and "DisplaySetContrast"(line 465) functions output commands to "register" 0xF701 (DISP_O_LIGHT = 0xF701)

Line 465 should be something like: _outp(DISP_O_CONTRAST, itemp);

I guess you could also ditch "itemp" variable and use "iNewLevel&127|128" int "_outp" function.

P.S.: I don't own a real SmartXX V3 but spoofing it with the modchip I currently develop exhibited the described behavior. I attached a "fixed" source file but it is untested as I don't have the necessary setup to build XBMC. I will change that soon!

Files

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smartxxlcd.cpp (20.6 KB) smartxxlcd.cpp		psyko_chewbacca, 05/08/2014 02:59 PM
smartxxlcd.cpp.patch (636 Bytes) smartxxlcd.cpp.patch		dandar3, 09/08/2014 03:14 PM